| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Zamudio-Ramirez Pavel | Chief Customer Officer | 7950 JONES BRANCH DRIVE, MCLEAN | /s/ Angela Patterson, Attorney-in-Fact | 03 Mar 2026 | 0001913014 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | APPN | Class A Common Stock | Options Exercise | $0 | +2,259 | +9.3% | $0.000000 | 26,487 | 03 Mar 2026 | Direct | F1, F2 |
| transaction | APPN | Class A Common Stock | Tax liability | $22,473 | -822 | -3.1% | $27.34 | 25,665 | 03 Mar 2026 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | APPN | Restricted Stock Unit | Options Exercise | $0 | -2,259 | -100% | $0.000000 | 0 | 03 Mar 2026 | Class A Common Stock | 2,259 | Direct | F3, F4 |
| Id | Content |
|---|---|
| F1 | Each Restricted Stock Unit ("RSU") converts into Class A Common Stock on a one-for-one basis. |
| F2 | Includes 170, 127, 150, and 221 shares acquired on 11/5/2025, 12/3/2025, 1/6/2026 and 2/4/2026, respectively, under the Appian Corporation Employee Stock Purchase Plan. |
| F3 | Each RSU represents a contingent right to receive one share of Issuer's Class A Common Stock (or its cash equivalent, at the discretion of the Issuer). |
| F4 | The RSUs were granted on February 26, 2026 and vested immediately. |